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ION Setup User Guide Introduction

Optical probes

ION Setup supports optical probe communications for meters equipped with

compatible optical IR ports. Refer to “Optical probe communications” on page 45

for details.

Using Modem Communications

Modem communications requires two or more compatible modems: one modem is

located at each remote site (connected to one or more serial devices) and one is

located at the workstation (connected to the computer’s serial port). ION Setup

uses the local modem to dial the remote modem’s telephone number and establish

communications.

The modems can connect via any communication channel, including the public

switched telephone network (PSTN), a dedicated or leased telephone line, a fiber-

optic link, a radio modem, and so on.

Each remote site may contain one or more meters, with appropriate

communication connections (RS-485 for multiple devices at a single site and

RS-485 or RS-232 for a single device). Any site using an RS-485 communication

link also requires an RS-232 to RS-485 converter to connect to the modem.

NOTE

RS-232 permits only one device to be connected to a modem. Use an RS-232 to RS-485 converter if

more than one device will be installed at the remote site.

For instructions on communicating with devices using modem communications,

see “Adding and Configuring Devices” on page 41.

Mode Port Baud SW1 SW2 SW3 SW4 SW5 SW6

RS-485 Flow Control with

Auto Baud Rate Detect

(Modem)

DCE N/A OFF ON OFF ON ON OFF

RS-485 Flow Control with

Hardware RTS (Serial)

DCE N/A ON OFF ON ON ON OFF

local

modem

telephone line

remote

modem

RS-232 to RS-485

converter

RS-485

devices

Workstation

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